Question

3. A man covers first 20% of the distance at
10 km/h, next 50% at 5 km/h and the
remaining distance at 15 km/h. Find his
average speed.
(a) 7 km/h
(b) 7.14 km/h
(c) 7.24 km/h
(d) 4.17 km/h​

Answer 1

Answer:

I think answer will 7.24 km/ hr.....